Supply the correct form of the verb for each blank

giải thích tại sao chọn những động từ sau ?

I. Supply the correct form of the verb for each blank:

1. Where you (spend) ____spent_____ your summer holiday last year, Tam?

2. When we (be) ____were_____ small, our family (live) ___lived______ in the countryside.

3. I (read) ___am reading_____ an interesting book at the moment.

4. How long you (know) ____knew_____ Mrs. Chi? – I (know) ___have known______ here for five years.

5. We (not see) ____have not seen_____ her since we (be) ___were______ on holiday in Ha Long bay.